J. M. Barrie on wisdom

Those who bring sunshine to the lives of others, cannot keep it from themselves.

I am not young enough to know everything.

Do you believe in fairies?… If you believe, clap your hands!

The only true wisdom is in knowing you know nothing.

Socrates470–399 BC

By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.

Confucius551–479 BC

True wisdom comes to each of us when we realize how little we
understand about life, ourselves, and the world around us.